I’d like to avoid your usual heated battle over fricatives and dipthongs, so to be charitable I would assume it’s either one or two syllables depending on how your prefer to pronounce it. Jim Morrison crooning “C’mon baby light my [fīr]” is one syllable, while Ian Astbury screaming “[fahyuhr]! Smoke she is a rising!” is two.

I think if myswandive would have omitted the “the” there would have been an equal amount of outcry from the mono-syllabic dead enders. Damned do/don’t.